green heft

Received embedded watermarking information image block through DCT transformation,and merged it into the whole plan through DCT inverse transformation;then,received watermarking information gray image of green heft. Finally the watermarking color image was received through channel compound.
即將Arnold置亂加密后的水印圖像嵌入宿主圖像綠色通道的DCT中頻系數(shù)中,再對原始圖像進行通道分離獲得綠色分量,由DCT變換得到嵌入水印信息圖像分塊并DCT逆變換后將其合并成整圖,得到加載水印信息的綠色分量灰度圖,最后合成通道得到含水印的彩色圖像。